From: Study on Early-Age Elastic Modulus of FRC Using Electrical Resistivity and Resonance Frequency
Polypropylene | Nylon | Glass | Steel | |
---|---|---|---|---|
Density, ρ (kg/m3) | 910 | 1150 | 2700 | 7800 |
Tensile strength, τ (MPa) | 410 | 300 | 2000 | 1030 |
Flexural strength, σ (GPa) | 5.6 | 2.8 | 77 | 203 |
Fiber length, l (mm) | 19 | 19 | 13 | 25.4 |
Diameter of fiber, d (mm) | 1.52 | 0.038 | 0.014 | 1.18 |